(3911) Otomo Main-belt Asteroid
Discovered on 31 August 1940 by K. Reinmuth at Heidelberg.
Where Otomo is today
Seen from above the solar system on 2026-10-14: Otomo is 3.06 au from the Sun and 2.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3911 |
| Provisional designation | 1940 QB |
| Orbit class | Main-belt Asteroid |
| Diameter | 19.1 km (#2,337 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.137 |
| Rotation period | 19.6 hours |
| Absolute magnitude (H) | 11.57 |
| Orbital period | 5.30 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 2.75 – 3.32 au |
| Eccentricity | 0.0935 |
| Inclination | 10.7° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by K. Reinmuth
- (796) Sarita
- (799) Gudula
- (864) Aase
- (909) Ulla
- (910) Anneliese
- (911) Agamemnon
- (913) Otila
- (918) Itha
- (920) Rogeria
- (921) Jovita
- (922) Schlutia
- (923) Herluga
← (3910) Liszt · (3912) Troja →